LL Wolf 1964 22 Aimophila aestivalis June 21 / mi. S. Boykin Springs, Jasper Co., Texas. 0535 - O#1 sang once. woods is wet. there is light in woods but no sun yet. O sang for about 5 min. at 0540. sunlight on forest floor at 0552. 0555 - O sang several songs from near nest site. when I arrived back at observation point O began continuous singing from NW of nest. - no sign of ?, O still singing at 0612 + no sign of ?. As I approached O became silent + have heard nothing from him until 0630, when 3 songs. 0631.5 - singing TTL when I approached again quieted down. 0645 - 0705 - O#1 singing to NE of nest ~ 100 yards. Each time I approach he stops singing + I have been unable to see birds yet this morning. 0712 - this bird now sounds to be across the road so it is most likely O#2. - prob. not 0716 - flushed prob. O#1 from ground 100-150 yards NE of nest. found another O to SE 300 yards. 0723. heard O#1 sing one song + continuous song from nest just once of June 19. As I approached O flew up into tree + began singing bird songs. Can hear another O several hundred yards to SW singing. 0730 - O#1 still singing from top dead branches (5-6' up) of shrub. 0731 - O#2 counter-singing with O#1 who has now moved some to N of last location. when counter-singing the songs of the two O's do not change in unison either both seems to have repertoires which include the same types.